Attachment for knitting machines



uy 28, H925. TLQLH LACK ETAL' i ATTACHMENT FOR KNTTING MACHINES FiledFeb, 20, 1.924. `5 SheecSheet Vl I :l1/wanton [5m/e2 Lac/ atto: neg

' July 278, 19,25. 1,547,501

|-. LACK EVAL l ATTACHMENT FOR KNIT'IAING MACHINES Filed Feb. 20,. 19243 Sheets-Sheet 2 l :l1/wenken 5., ZS/'nel cw/f v Har@ fa/Win36? @Hom/w14July 28, w25. h @54mm l. LACK ET AL ATTACHMENT FOR KNITTING MACHINESFile Feb. 2o, 1924 s sheetssheet 5 l 3mm/1to1 15m/e2 Lach Hang /asriw/ySTATES' PArENTOFlCE- ISRAR. LACK AND HARRY KAs'rRINsKY, or BROOKLYN, NEWYORK;

A'rrAcHMnNr FoR RNITTING MACHINES.

'Application led February 20, 1924. Serial No. 694,045;l Z'dall it'mag/concern: tuate the revolution'of the saidjthreaded Be it known thatwe, ISRAEL LACK and rods. Hanny KAs'rRINsKY,-`oitizens of the United Foramore detailed understanding of the Stat e s,and. residents ofBr'ooklyn,inthe invention, attentionis now -called'to the 5 county offKings andState of New York, drawings in which a preferred embodiment 00 -haveinvented newand. useful-Improvements is shown illustrated. In-thesedrawings like inan. Attachment for Knitting Machines, parts aredesignated by like reference charof which the following is a seeification. acters in all the views.'- .I This invention'. relates' toitting- -ma- Figure 1 is a top. view of the novel-knit# m chines andmore particularly to a device for ting device.

, 65 attachment to a knitting machine for execut- Figure 2 is a rearview thereof. ing designsof various charactersby intro- Figure 3 is anenlarged view'of the ope'rducing a-yarnof different color inthemateating mechanism. rial during. the course of knitting.' Figure 4*'isan end view thereof. The object of the invention is to provide' -Figure5is a top view thereof. 70 '-r 'a device of this character which 'canreadily Figure 6s aview of the yarn carrier'conf- 'b'etattached to anymake o f knitting machine. tacting with the right hand stop.

Another object of this invention is'to pro-' Figure 7 is a topfview oftheyarn carrier vide a device o; this characterhaving a deand stops.sign controlv elementto coritrol the shape-of Figure .8 is av sectionOnline of Fig- .75 .design desired. ure 7., s Still. another object ofthis inventionis Figure 9 S'a front View oi the yarn Calf: ."to providea device ofthis character by r1er. wh1ch"design controls of diierentkinds ca'n F1gure 10- is 'a section on line 10-'10 of besubstitutedto-produce designs of various Figure 7. 8o characters. 1Figure 11 is a fragmentary view of Fig- Still another object of theinvention is to ure l0 Awith the 'knob turned half W y 110th@ provide adevice of this character having 1eff ,f2-' y a reciprocating yarncarrier, suitable stops Figure l2 is a section on h ne 12-.12 of? 30 tolimit the movement of the `said yarn car, Figure l1. f 585 rienand meansto govern the spread of the lgure 13 1s a View of adeslgn produced saidstops. in the knitted fabric. 1; 'f-

` A fulrther object of the invention is. to ro'T FigureI is anotherstyleV design possible f vi'de al deviceof this character adapte to toproduce by. changing the design oontr o1 35 .execute designs of variouscharacters in the Figure 1 5- is a diagrammatlc View of the 90 material,While being knitted,- which shall be stitches showing the-extrs threadintroduced sitive in' operation and practically rigid t0 execute theesignsuj- 1 1n its construction, to reduce the movements Referrlng nowAto,the"drawings in' detail, of the operative parts to a minimum andnumeral 1 representsthe u sual frame of a. v to produce a knittingdevice that'issimple'and' knltting machine. vAttached to this lframe 95eiective and capable of accurate and efficient' 1S a bracket 01SUPP01`-2 OI th@ SUPPOI. 0f.

operation. vthe 'operating' xnechanism,asnoted in Figf-4 Other objectswill appear as the disclos ure 3. y ure rogresses. The drawings aremerely in The operating mechanism consists'of a '45 `ten ed to indicatea possibleembodiment of' master'gear 3 iiXed-to a shaft LLand having 100the invention. It is obviousthat the actual bearings atj 5. At one endof the shafte, Deeds Of ma'lllftI-llQg-myl IleCBSSltt Cel'- anOscluating lever tain mechanical .c i 1'anges. is, therefore, end 7 isformed into a bearing 8in wllnch net intended vto limit thefinventitm tothe' a shaft having al cam-9' and ratchet 10.ris

i@ embodiment illust-rated, butj rather to de mounted. The lowere'ndofthe shafthas cori- 05 fine such limits in he appended'claims'. nectedthereto a link llfand clamp 12,

.In general the device consists-of a recipclamp is attached to ashaft-13 of a stand'-- rocatin'g yarn carrier, a'pair 'ot'. stops toard'machine, which shaft revolves"approxi-A limit its movement, a airof' threaded rods mately throu h an arc of 45 degrees;v Ollf 55 on whichthe stopsri e, andineantoacthe "downward, revolution of'the'shaft.;Ath-,110

ed. .giti l and. at other" end and hav-ing "bearin I curved end' '32hsian 'adjusteble-lyrn guide' anism'is provided' in .t'hefstops toengagefand dieengage the lthreaded :rods '23' .a'n d 26,-.

- which consists "of a;' -'Slottedv element- 3 6 'j knob 38 and" stem'.-39is`zg1ttached-to the, 'slotted 'element' to reise same.Whe'n'f-the."

slottecl-element is ii'ij-f'tl'ie'downwardr pos ition, the slot 40Willengage one (f'tliey threads in. the rod-ndmove -the stop either'direction,'dependin'g upon the di-reef' move 'the stops independentlyofi 'the 'revo'- are pulled upward and swung-around;

slot 42 as-Will be no'ted'in Figurefll.

Tightening means are also vprov keep the stops in any 'fixedposition-.on the-'2. bed of the knitting machine when the stops- 'a'redisengaged from the. threaded rods '2 3' and' 26.. The base ofthe "stops"fis fwill'bethe knittii'igr maehin'e.- Nnnieral 44 '1ep1 e.iA .sent'san adjnstingfscrew; vfind-45'; supports., forthe movable element43. AsAnoticed Vin- Figures- 71 and 10', the 'snp-ports '45 -co nsist' ofthreaded' bolts. loosely :fitting .int'the downward bent por'tion'oftheStops 34 -and .35, and screwed tightly into-'the 'mot/able lelement 43'.The :funetion'of the Supports 15l isto prevent lateral movei'hent 'of.the

elenent 43When 'the'- 'Stops 34 'and'35 are moved The adjnsting' serewsffl- 'do 110i;

a Gamer.

the Saline-'foi'. 'theLpurpose 4offwedf'gng the .-'eiement43regain1sefthe .bed .ee-.d jthe knit- .Tlle'revoldt'ioiio this' shaftafs-noted" :again-se' the faces ofthe-,cam gfaeefll. '-1 QonteotingWith"t lie paw1'1,jthe direction, of revolution' off'the meister gear-leeth foi' the' niast'er.

jnsting theS-li-Iik at several-pointe of -'the er is 'greqijproeaeingthe fun.

lio

`Arode .23 end- 126' will revolve opposite ,130

ext riding. 35

26 will revolve in opposite 'direction to,

wards each other. In other words, the revolution of the' rods is alwaysin opposite direction to each other due to lthe gear 24 being the driverand the gear 25 the driven.

As noted in Figure l, the design 56 worked vout in the knitted material57 depends on the reciprocating movement of the yarn carrier 28. vWhenthe cam 9 causes the master gear to turn. clockwise, the rods 23 and 26revolving away from each other, willA gradually bring the stop together.When the master gear turns anti-clockwise, the stop which limit themovement of the yarn carrier, will move away from each other. When thepawl is disengaged from the master gear,there will therefore be nomovement of thev rods, and the stops 34 and 35-will remain stationary.

In Figure 13 a hexagonal shapeddesign 56 is worked out in thematerial.57. The

sides 58 represen't the'stops moving away 'from each other; the sidesl59 are formed when the stops are stationary, and the sides 60, when thestops are moving towards each other.

The design controlling cam shown inF igures 2 and 3 will execute theseriesof designs shown in Figure 13. An innumerable number of designscan be executed by simply changing the design control cam 9. n

As the rod or finger '48 reciprocates the entire .length of the" machineand as vthe yarn carrier' moves at different lengths,

means are pro-vided to disengage the finger 48 from the yarn carrier-sothat the finger Will be free to move its entire length. The finger 48tits into -a recess 61 of the base of the yarn carrier. When the fingermoves;

the yarn carrier until it strikes the stop 35, the curved portion 62 ofthe projection 64 will urge the finger outward as noted in Figure 6,thereby disengaging the finger v from the yarn carrier. On the backwardl stroke, the finger will hit the slide 63 and move along until it jumpsinto the recess 61', and thence bring the yarn carrier against the otherstop. y In` Figure 15, a diagramatic view of the :knitting is shown.Numeral 57 representsthe yarn of 'the mat-erialbeing knitted, andnumeral 56 the yarn introduced by this device.

The structureand operation of this novel knitting attachment fhas now-been fully set forth. `The-'operation is entirely automatic and.designs of various shapes can be executed. This device can be mountedon any style o-straight knitting machines.. n

:What I desire to secure by Letters Patent 1. I nv a vdevice ofthe-class described in combination, a .reciprocating yarn holder,

pin.

stops to regulate the movementJ of the said yarn holder, means forthread'edly engaging and disengaging the said stops'with threaded rods,the said .means including a spring pressed slotted element, a stem, aknob and a disengaging pin, the said threaded rods adapted to guide thesaid stops-and revolve iniopposite direction to each other.

. 2. In a device ofl the class described in' Combination,` areciprocating yarn holder, l

stops for regulating the movement ot the said .yarn holder a pair ofthreaded rods parallel to each other, the said rods passingthroughthesaid stops, a slotted spring v pressedelement within the saidstops, for threadedly engaging the said rods, and a disengaging'pin forbreaking the said enin the said stops for making a contact bef tweenythe' said stops and thesaid rods, adisengaging pin for breaking thesaid contact and means to revolve the said threaded rods atpredetermined intervals.

4. In a device of the class described in combination, a slidablereciprocating yarn uholder including a base, a recess 1n said base, afinge-r adapted to fit in said recess, slides on both sides of the saidbase, -stops to regulate the movement of the said yarn holder, threadedrods for moving the said stops, the said threaded rods passing throughthe said stops, a threaded spring pressed element within the said stopsfor making a Contact between the said stops and the said rods, adisengaging pin for keeping the said threaded element out of engagementwith thesaid rods, slides on the inner sides of the 4said stops, thelast mentioned slides adapted tov disengage the said finger from thesaid recess.

5. In la device of the class described in combination, a support,bearings in saidsupport, a shaft insaid bearings.a master gear l fixedonsaid shaft, a pair of threaded rods a train of gears to transmit themotion o the said maste'rgear to fthe said threaded rods. stops adaptedto move by the revolu tion of the said threaded rods, means tothreadedly engage and disengage the said stops .from the saidthreaded'rods, the said means including 'a spring 'pressed slottedelement, ahstem, aknb and a disengaging 6. In .a device ofthe, classdescribed in combination, a brac1 ret, hearings in said bracket, afshaftin sai/d bearings, a master gear mounted on .said shaft, another gearmeshing Withthesaid master gear, a. Shaft. '130 rvolution' l of: thv4said .rodsyzfan y move ho'twoen the said-Stops adj weint .tho Saidbevel'l gea ,5 anothorj goa? rods'. J

0 .Si the gear v 1184111. ai device of {thefolas'sfds'ciibediicombi'nxiijion, a. clamp,

.gstationarylorm ed' ms, the said Air'ods"revolving in? 'op said yam weppm viii-5.1; mentioned to revolve.

masteit geaif pairrof Stops Y 'v n.15. in; ai;

@imm

pivoted to said '-1ever, means ,for oscillat 11g .the saidIevor,1moay1s`or opor-'ating' they said 'trailiof gears revo1utioi therevolution of drfm'` an gefaig. means' [to change the the@ Stein' Y ln.0: halo? sie;

saidstops for making a Contact between the said stops and the said rods,and a disengaging pinfor keeping the said threaded element out ofengagement with the said rods.

18. In a device of the character described,

a reciprocating yarn holder, a recess in the base .of the said yarnholder, a' finger adapted to loosely lit into the said recess, a pair ofthreaded rods, stops on both sides of the said yarn holder, the saidstops adapted to move by the revolution of the said rods, a threadedspring pressed element Within the said stops for making a contactbetween the said stops and the said rods, a disengaging pin forkeeping'the said threaded ele-y ment out of engagement With the saidrods, slidesv on the said stops, the said slides adapted, to disengagethe said linger from the saidrecess when the said stops Contact. A

In testimony whereof We affix-our signa tures'.

ISRAEL LACK. HARRY KAsTRiNsKY.

slides and said 20

